//! Metric type implementations.

pub mod counter;

pub mod exemplar;

pub mod family;

pub mod gauge;

pub mod histogram;

pub mod info;

/// A metric that is aware of its Open Metrics metric type.

pub trait TypedMetric {

    /// The OpenMetrics metric type.

    const TYPE: MetricType = MetricType::Unknown;

}

/// OpenMetrics metric type.

#[derive(Clone, Copy, Debug)]

#[allow(missing_docs)]

pub enum MetricType {

    Counter,

    Gauge,

    Histogram,

    Info,

    Unknown,

    // Not (yet) supported metric types.

    //

    // GaugeHistogram,

    // StateSet,

    // Summary

}

impl MetricType {

    /// Returns the given metric type's str representation.

    pub fn as_str(&self) -> &str {

        match self {

            MetricType::Counter => "counter",

            MetricType::Gauge => "gauge",

            MetricType::Histogram => "histogram",

            MetricType::Info => "info",

            MetricType::Unknown => "unknown",

        }

    }

}